Loom.



No. 775,898. PATENTED NGV. 22, 1904.. E. S. DRAPER.

LOOM.

APPLICATION FILED .TUNE 2. 1904A NO MODEL.

\ 2 SHEETS-SHEET 1.

PATENTBD NOV..22`, 1904.

E. S. DRAPER.

LOOM.

APPLIUATION HLED JUNE 2. 19041 2 SHEBTB-SHEET Z.

No MODEL UNITED STATES Patented November 222, 1904.,

PATENT OEEIcE.

EBEN S. DRAPER, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO DRAPER COMPANY, OF HOPEDALE, lVIASSAOHUSETlTS, A CORPO- nATioN or MAINE.

LOM.

SPECIFICATION forming part of Letters Patent No. 775,898, dated November 22, 1904.

Application filed June 2, 1904. Serial No. 210,805. (No model.)

To all whom, it 'muy concern.'

Be it known that I, EBEN S. DRAPER, a citizen of the United States, and a resident of Hopedale, county of Worcester, State of Massachusetts, have invented an Improvement in Looms, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention relates particularly to powerlooms of thetype wherein the manipulation of the warps to form the sheds in the production of a figure or pattern is effected by or through a shedding' mechanism controlled by a pattern-surface; and it has for its object the production of an organized loom adapted to weave fabric in pattern or ligure, having in combination means to prevent the formation of thin places in the cloth by arresting the operation of a take-up instrumentality when [illing is not properly laid in the shed, such arrest of take-up being effected by or through the medium of a double-detecting mechanism.

My invention comprehends such a combination with or without automatic filling-replenishing mechanism, and the filling-detecting mechanism may in either case be arranged to effect stoppage of the loom promptly upon detection of filling failure. lf `the loom is provided with filling-replenishing mechanism and a feeler device to cause the operation of the same prior to complete exhaustion of the running filling', the double filling-detecting mechanism may be arranged to stop the loom upon detection of filling failure or after a predetermined number'of successive filling-replenishments, according' to the character of the filling-detectingl mechanism.

ln so-called fancy looms-wz'. e., wherein the shedding mechanism is of the jacquard or dobby classthe Weaving' is always of an intricate pattern and the cloth produced is of high grade, so that defects are very noticeable and correspondingly costly.

Automatic-filling-replenishing looms ofthe feeler type effect filling-replenishment prier to complete exhaustion of the running filling, and my broad invention is preferably employed in connection with such looms, though it is to be distinctly understood that my invention is not limited to such use.

With the ordinary loom having a lillingdetector or fork located at the side opposite that at which lilling' replenisment is effected (if replenishing mechanism be employed) the breakage of filling may not be promptly dei tected and a dragging filling' en d from the shuttle may tilt the fork as if the filling were intact, causing mispicks and thin places in the cloth.

In order to obviate this fault, a second iilling'- i detector is located at the opposite side of the loom, both of the detectors being arranged te arrest the operation of a take-up instrumeni tality upon detection of iillingl failure.

So far as I am aware the combination in a power-loom of shedding' mechanism control led by a pattern-surface, with means to arrest the operation of a take-up instrumentality when,-

ever the filling is not properly laid, is broadly new, and accordingly my invention is not restricted to the particular take-up-arresting means herein shown and described, as any other means of the double lilling-deteetor type which will accomplish the desired eileet falls within the spirit and scope el my invention.

The'double detecting means herein illustrated is shown as employed in connection with a feeler device and with filling-replenishing mechanism, and it is so arranged as to stop the loom upon detection of filling break- Aage; but by using another form of double detecting means-sucln for instance, as is shown in Unitedu States Patent No, 727,014the loom will not stopped unless a predetermined number of successive operations ofthe replenishing mechanism takes place. So, too, as will be more clearly apparent hereinafter, the double detecting means if employed without a feeler device or lilling-replenishing mechanism, either or both, may also be arranged to stop the loom upon detection of filling failure by either filling-detector in addition to arresting the operation of the take-up.

The Various novel features of my invention will be fully described in the subjoined specification and particularly pointed out in the following claims.

rIhe pattern-controlled shedding' mechanism may be of any usual o1' desired type, dobby or jacquard, and I have chosen to illustrate the present embodiment of my invention in a loom having a dobby-head, and I have chosen to illustrate in connection therewith a fillingreplenishing mechanism by or through which the running shuttle is provided with fresh filling', preferably as the filling therein approaches complete exhaustion, but prior thereto.

Figure l is a front elevation, centrally broken out to economize space. of aloom embodying one form of my presentinvention, the major part of the take-up mechanism being omitted for the sake of clearness of illustration; and Fig. 2 is an enlarged top or plan View, also centrally broken out, of a sufficient portion of the loom shown in Fig. l to enable the construction of the filling-feeler and double detecting devices to be clearly understood.

Referring to Fig. l, the arch AX, rising from the loom-frame A, supports the'dobby or head motion sustaining bracket A', having pivoted thereto at A2 the harness-levers A, notched at their upper ends, to which one end of the harness connection A4 is secured, said connection passing over suitable guide-rolls A5 on the arch to the harness or heddle frames A, all as usual in such form of shedding mechanism.

The knives A7, sliding in guideways in the l bracket A', are driven from the vibrator-arm A8 through the connections A, there being preferably avibrator-arm on each side of the bracket and oscillated in usual manner by means not herein shown-as, for instance,

shown in United States Patent No. 243,861-

and well known to those skilled in the art.

The connectors A1o are pivotally connected at A11 to the harness-levers A3 and carry the hooked jacks A12, jointed at A13 to the connectors, (see dotted lines, Fig. 1,) the jacks under the control of the pattern-surface A14, carried by the shaft A15, being adapted to engage the reciprocating knives A7 to thereby y raise and depress the heddle-frames A, all as usual in such type of dobby or head motions, as is herein illustrated and which is a matter of such common knowledge to those skilled in the art as requires no further detailed descri ption. The order of formation of the sheds is thus controlled by or through the pattern surface or chain A11, operated by the shaft A1,.Which by any usual form of gearing (not shown herein) is driven from the crank-shaft of the loom, Which shaft also effects .by intermediate connections the oscillation of the vibrator-arms A8 in usual manner. Thus the Wide range of pattern or figured effects on the fabric being Woven is secured,

and manifestly any disarrangement in the operations or timing of the shedding mechanism with relation to the other parts of the loom will mar or destroy the continuity of the pattern or figure being' Woven, and a defect will be produced in the cloth. Such disarrangement may be caused by continued Weaving after the fillingin the shuttle has run out or become exhausted, and accordingly I have herein provided filling-replenishing mechanism, Which will be caused automatically to supply fresh filling, preferably prior to complete exhaustion of the filling in the shuttle, in connection with my broad invention, viz: pattern-controlled shedding mechanism combined With double filling-detectors, to detect failure-z'. e., breakage of the filling on alternate picks-and arrest the operation of a takeup instrumentality upon detection of filling failure.

The filling-replenishing mechanism selected for illustration in the present embodiment of my invention is of the Well-known Northrop type, such as shown and described in United States Patent No. 529,940 and other patents of later date, the filling-feeder F of such mechanism being shown in Fig. l as mounted at one side of the loom on the breast-beam A40. The transferrer f' to remove the filling-carriers b one by one from the feeder and to insert them in the automatically self-threading shuttle SX (see Fig. 2) may be and are all as common in the Northrop type of loom, hereinbefore referred to, the lay A3 having shuttleboxes B B thereon, and the breast-beam is provided With a notched holding-plate N for the shipper S, forming a part of the loom-stopping means.

Referring to Fig. 2, the automatically selfthreading' shuttle is shown in plan and is constructed and arranged vvith a thread-delivery eye at its right-hand end.

A knock-off lever n on the breast-beam is adapted to release the shipper from its holding-notch, and the inner end n2 of the lever is slotted at n (see Fig. 2) for a purpose to be described. The replenishing of the fillingsupply in the running shuttle is by the mechanism herein shown eected by inserting a fresh filling-carrier in the shuttle, and fillingreplenishment is in the structure illustrated effected prior to complete exhaustion of the running filling, this result being secured by or through a feeler Which coperates with the fillingI in the shuttle, preferably by intermittingly engaging the same, as lherein illustrated, so that when the requisite or desired fillingexhausting is reached the filling-replenishing mechanism will be operated.

Referring to Fig. 2, a feeler l is slidably mounted in a fixed guide 2 and pivotally oonnected with the outer end 3 of a feeler-carrying lever 3 4L, fulcrumed at 5 to swing in a substantially horizontal plane,and so arranged IOO IIO

that the feeler will pass through an opening f3 in the front wall of the shuttle-box B on each forward beat of the lay.

When the shuttle is boxed opposite the feeler, the latter will also pass through an opening 7 in the shuttle-wall to engage the filling-supply. and such intermittent engagement of the feeler by the filling causes forward movement of the feeler in its guide in well-known manner and rocks the lever 3 L1, the amplitude of such movement gradually decreasing as the filling weaves off.

The inner end 4 of the feeler-carrier cooperates with an overhanging portion 8 of a latch 9, pivotally mounted at its front end to van upturned arm d5, rigidly secured to the usual controlling or operating rock-shaft d', extended across the loom, said rock shaft when turned in the direction of the arrow 100, Fig. 2, causing the operation of the fillingreplenishingmechanism, substantially as set forth in Patent No. 529,940, before referred to.

The rear end 10 of the latch is adapted to be engaged by a bunter wx on the weft-hammer `W at the left-hand side of the loom whenever the inner end of the feeler-carrier is beneath the overhang 8 of the latch.

Exhaustion of filling in the shuttle to such a point that filling-induced movement of the feeler will not be sufficient to draw the end 4 of the feeler-carrier from'the overhang 8 will be followed by cooperation of the bunterl and latch, substantially as shown and described in United States Patent No` 720,209.

lt will be understood, however, that the particular' construction and arrangement of the feeler mechanism herein shown is not essential to my broad invention; but it has been chosen as a convenient form for the purpose of illustration.

When the latch am and bunter 10X coperate, as the weft-hammer W moves forward the rock-shaft ci will be turned in the direction of the arrow 100, and the replenishing mechanism will be operated, and the shuttle will be provided with a fresh supply of filling when the shuttle on the next pick reaches the replenishing-box BX.

inasmuch as the feeler causes a replenishment of the running filling before complete exhaustion thereof, it will be obvious that no thin places can be produced in the cloth by weaving out or exhaustion of the running lilling; but if the filling fails by breakage a lilling-detector is provided to detect such failure and to prevent thin places in the cloth by arresting the operation of the take-up. Such a detecting device is shown at the left-hand side of the loom and comprises a filling-fork f, pivotally mounted on a slide j' of usual construction, the fork-tail coperating with the usual hook of the weft-hammer 'WV when filling failure is detected.

On its outward movement the slide engages the slotted end a2 of the knock-oil' lever in the construction herein illustrated and releases the shipper from its holding-notch, and

such a detecting device is satisfactory if lilling failure is promptly detected and the filling failure occurs when the shuttle is moving toward the box B; but if the break occurs upon the opposite shot the detection of the fault may be delayed long enough to permit the formation of a thin place.

1f when the filling breaks a long end is left dragging or trailing from the shuttle, it will frequently act upon the detector f and tilt it just as if the filling were intact and properly laid, making a mispick, and this improper operation might possibly be repeated several times before its discovery by the weaver. To prevent mispiclzs from such cause and also to obviate the use of let-back means which are not always certain in their operation, I provide a second filling-detecting device located at the other side of the loom, herein shown as adjacent the filling-replenishing mechanism, and I have so arranged the mechanism that detecting action of either fillingdetector will arrest the operation of a take-up instrumentality.

The second filling-detecting device coinprises a fork y, mounted on its slide gx in usual manner, a second weft-hammer V2(see Fig. 2) causing outward movement of the slide when filling failure is detected by the fork g.

The rock-shaft d is mounted at its ends in bearings 11X 12X, and ad`acent the former bearing the hub 11 of the arm Z5 is rigidly secured to the shaft, and at the other end of the latter the hub 12 of the spring-controlled arm ZX is fast on the shaft, the two hubs preventing any longitudinal movement of the shafts. Between said hubs a tubular rocking member 18 is rotatably mounted von the shaft and has rigidly secured to it a depending arm 16, (see Fig. 1,) said arm in practice being arranged to arrest the operation of a take-u p instrumentality whenever the member 13 is turned in the manner hereinbefore described. Such taire-up instrumentality is included as a part of one of the operative instrumentalities of an organized loom and may be of any suitable construction-as, for instance, as is shown in United States Patent No. 6-13,281--and in such case the arm 1b' would when rocked cooperate with the take-up pawl-carrier et to arrest its operation.

By the arrangement described detecting action of either detector arrests the operation of the take-up instrumentality on the detected pick, and it will be manifest from the foregoing description that the detectors act on alternate picks to detect presence or absence of the filling.

The rocking member 13 is herein shown as having rigidly secured to it the hubs of two upturned and bent arms 14: and 15, (clearly shown in Fig. 1,) the upper end of arm la en- IOO tering the slot n of the knock-off lever, so that when the slide f X is moved forward the member 13 will be rocked.

T he arm 15 is upturned in front of the slide gx, and consequently outward movement of the latter will also turn the member 13, so that in the double detecting means chosen for illustration not only will take-up be arrested, but the loom will be stopped upon detection of filling failure by either detector.

Springs 17 and 18, secured to a fixed part of the loom-frame, bear at their free ends upon the arms 15 and 14, respectively, to return the slides to their normal position after outward movement thereof.

Should a broken end of filling trailing or dragging from the shuttle prevent the detector f from detecting filling failure, it will not interfere with the detecting action of the other detector, g, because when the shuttle is in the replenishing-box B the delivery-eye is nearest the outer end of the boy` and the trailing filling end is drawn out of the path of the detector g, so that the slide gx thereof will be moved outward, as has been described.

In the foregoing specification I have described suitable means for effecting filling replenishment prior to complete exhaustion of the running filling to obviate the necessity of turning' back the loom and the shedding mechanism; butmyinvention is not restricted to the use of filling-replenishing mechanism or a feeler device, either or both, of the particular construction herein shown and described or otherwise, and other forms of double filling-detecting means may be used within the spirit and scope of my invention, the gist of which, broadly considered, resides in the combination, with a pattern-controlled shedding mechanism, of anysuitable or usual form, of means to detect promptly filling failure irrespective of the pick on which such failure occurs and to arrest the operation of a take-up instrumentality when filling failure is detected.

My invention also comprehends the combination, in a loom having a pattern-controlled shedding mechanism to manipulate the warpthreads in the production of a figure or pattern, of means to effect the stoppage of the loom by or through detection of filling failure on either pick.

Having fully described my invention, what Iclaim as new, and desire to secure by Letters Patent, is-

1. In a loom comprising weaving instrumentalities, in combination, a pattern-controlled shedding mechanism to manipulate the warp-threads in the production of a figure or pattern, and means adapted to arrest the operation of a take-up instrumentality when filling failure is detected on either pick.

2. In. a loom comprising weaving instrumentalities, in combination, a pattern-controlled shedding mechanism to manipulate the warp-threads in the production of a figure or pattern, and two filling-detectors to detect filling failure on'alternate picks and adapted to arrest the operation of a take-up instrumentality by or through detecting action of either detector.

3. In a loom comprising weaving instrumentalities, in combination, a pattern-controlled shedding mechanism to manipulate the warp-threads in the production of a figure or pattern, and two filling-detectors, located at opposite sides of the loom and adapted to arrest the operation of a take-up instrumentality when filling failure is detected by either detector.

4L. In a loom comprising weaving instrumentalities, in combination, a pattern-controlled shedding' mechanism to manipulate the warp-threads in the production of a figure or pattern, and means to prevent the formation of a thin place in the cloth when the filling is improperly laid on any pick.

5. In a loom, in combination, a pattern-controlled shedding mechanism to manipulate the warp-threads in the production of a figured fabric, mechanism to effect a change of filling, means to control the time of its operation, and two filling-detectors, located at opposite sides of the loom and adapted to arrest the operation of a take-up instrumentality upon detection of filling breakage by either detector.

6. In a loom provided with mechanism to effect a change of filling in the running shuttle, in combination, a pattern-controlled shedding mechanism to manipulate the Warpthreads in the production of a figured fabric, and means to detect filling failure on either pick and adapted to arrest the operation of a take-up instrumentality when lling failure is detected.

7. In a loom the following instrumentalities in combination, viz: a pattern-controlled shedding mechanism to manipulate the warpthreads in the production of a figure or pattern, filling-replenishing mechanism operable to provide fresh filling' prior to complete eX- haustion of the filling in the running shuttle, and mechanism to detect filling failure at each side of the loom and adapted to arrest the operation of a take-up instrumentality whenever detecting action takes place.

8. In a loom the following instrumentalities in combination, viz: a pattern-controlled shedding mechanism to manipulate the warpthreads in the production of a figure or pattern, filling-replenishing mechanism, means to operate the same to effect a fresh supply of filling, and two filling-detectors to detect filling' failure on alternate picks and adapted to. arrest the operation of a take-up' instrumentality when filling failure is detected by either detector, whereby fabrics may be woven in pattern or figure without the formation of thin places.

9. In a loom the following instrumentali- IOO IIO

ties, viz: a pattern-controlled shedding mechanism to manipulate the warp-threads in the production of a figure or pattern, mechanism to provide fresh filling prior to complete eX- haustion ofthe supply of filling in the running shuttle, and two filling-detectors t0 detect filling failure on alternate picks and adapted to arrest the operation of a take-up instrumentality upon detection of filling failure by either detector.

10. In a loom provided with pattern-controlled shedding mechanism to manipulate the warp-threads in the production of a figure or pattern, filling replenishing mechanism, means to cause the operation thereof prior to complete exhaustion of the filling in the running shuttle, and two filling-detectors, located at opposite sides of the loom and adapted to arrest the operation of a take-up instrumentality when filling failure is detected by either detector.

11. In a loom, in combination, a patterncontrolled shedding mechanism to manipulate the warp-threads in the production of a figured fabric, filling-replenishing mechanism, means to control the time of its operation, including a feeler to intermittingly engage the filling in a running shuttle, and two fillingdetectors located at opposite sides of the loom and each adapted to change the operation of a take-up instrumentality upon detection of nlling failure.

12. In a loom comprising weaving instrumentalities, the combination of pattern-controlled shedding mechanism for manipulating the warp-threads, detecting devices to detect breakage of filling on alternate picks, and each adapted to govern the operation of a take-up instrumentality, a feeder to contain filling-carriers, mechanism to transfer a lilling-carrier from the feeder to the weaving instrumentalities, and means to control the time of' operation of such mechanism, including a feeler to cooperate with the filling in the running shuttle and effect the actuation of said mechanism prior to complete exhaustion of the filling in the shuttle.

13. In a loom comprising weaving instrumentalities, in combination, pattern-controlled shedding mechanism to manipulate the warpthreads in the production of a figured fabric, a feeder for holding filling-carriers, mechanism to automatically deliver a filling-carrier and eject an empty one, controlling means therefor including a feeler to cooperate with the filling in the running shuttle and cause the operation of said mechanism prior to complete exhaustion of the filling in the shuttle, and two filling-detectors to detect filling failure on alternate picks and adapted to change the operation of a take-up instrumentality upon detection of filling failure by either detector.

14. The combination, in a loom having a pattern-controlled shedding mechanism to manipulate the'warp-threads in the production of a figure or pattern, of means to effect the stoppage of the loom by or through detection of filling failure on either pick.

15. The combination, ina loom having a pattern-controlled shedding mechanism to manipulate the warp-threads in the production of a figure or pattern, of means adapted to arrest the operation of a take-up instrumentality when filling failure is detected on either pick, said means also acting to effect stoppage of the loom by vor through detection of filling failure.

16. The combination, in a loom having a pattern-controlled shedding mechanism to manipulate the warp-threads in the production of a figure or pattern, of two filling-detectors to detect filling failure on alternate picks and adapted to arrest the operation of a take-up instrumentality, and stopping means for the loom operated by or through detecting action of either detector.

17. In a loom the following instrumentalities, viz: a pattern-controlled shedding mechanism to manipulate the warp-threads in the production of a figure or pattern, two filling'- detectors, located at opposite sides of the loom and adapted to arrest the operation of a takeup instrumentality when filling failureis detected by either detector, and stopping means for the loom operated. by or through detecting action of either detector.

18. In a loom, in combination, a patterncontrolled shedding mechanism to manipulate the warp-threads in the production of a figured fabric, mechanism to effect a change of filling, means to control the time of its operation, two filling-detectors, located at opposite sides of the loom, and means to stop the loom upon detection of filling breakage by either detector.

19. In a loom the following instrumentalities, viz: a pattern-controlled shedding mechanism to manipulate the warp-threads in the production of a figure or pattern, mechanism to provide fresh filling prior to complete exhaustion of the supply of filling in the running shuttle, two filling-detectors to detect filling failure on alternate picks and adapted to arrest the operation of a take-up instrumentality upon detection of filling failure by either detector, and stopping means for the loom operated by or through detecting action of either detector.

20. In a loom the following instrumentalities, viz: a pattern-controlled shedding mechanism to manipulate the warp-threads in the production of a figure or pattern, mechanism operable to replenish filling prior to complete exhaustion of the filling' in the running shuttle, two filling-detectors to detect filling failure on alternate picks, and stopping means for the loom operated by or through detecting action of either detector.

Q1. In a loom provided with pattern-controlled shedding mechanism to manipulate the IOO IZO

warp-threads in the production of a figure or pattern, filling-replenishing mechanism, means to cause the operation thereof prior to complete exhaustion of the filling in the running shuttle', two filling-detectors, located at opposite sides of the loom and adapted to arrest the operation of a take-up instrumentality when filling failure is detected by either detector, and stopping means for the loom operated by or through detecting action of either detector.

22. In a loom the following instrumentalities, in combination, viz: a pattern-controlled shedding mechanism to manipulate the Warpthreads in the production of a figure or pattern, filling-replenishing mechanism operable to provide fresh filling prior to complete eX- haustion of the filling in the running shuttle, and mechanism to detect filling failure at each side of the loom and adapted to arrest the operation of the take-up instrumentality whenever detecting action takes place, and stopping means for the loom operated by or through such detecting action.`

23. Ina loom, in combination, apattern-controlled shedding' mechanism to manipulate the warp-threads in the production of a figured fabric, filling-detecting devices to detect filling breakage on alternate picks and adapted to arrest the operation of a take-up instrumentality, filling-replenishing mechanism operable to effect a replenishment of filling in therunning shuttle prior to complete exhaustion of the filling therein, and means to stop the loom upon detection of breakage of filling by either of the detecting devices.

24. In a loom. in com bination,a pattern-controlled shedding mechanismto manipulate the warp-threads in the production of a figured fabric, filling-replenishing mechanism, means to control the time of its operation, including a feeler to intermittingly engage the filling in a running shuttle, two filling-detectors located at opposite sides of the loom and each adapted to govern the operation of' a take-up instrumentality, a shipper, and releasing means therefor operated by or through either detector upon detection of filling'failure thereby.

25. In a loom comprising weaving instrumentalities, the combination of pattern-controlled shedding mechanism for manipulating the Warp-threads, detecting devices to detect breakage of lling on alternate picks, and each adapted to govern the' operation of a take-up instrumentality, a feeder' to contain filling-carriers, mechanism to transfer a filling-carrier from the feeder to the weaving instrumentalities, means` to control the time of operation of such mechanism, including a feeler to cooperate With the filling in the running shuttle and effect the actuation of said mechanism prior to complete exhaustion of the filling in the shuttle, and means to stop the loom upon detection of filling breakage by either detecting device.

26. In a loom comprising weaving instrumentalities,in combination, pattern-controlled shedding mechanism to manipulate the warpthreads in the production of a figured fabric, a feeder for holding filling-carriers, mechanism to automatically deliver a ,filling-carrier and eject an empty one, controlling means therefor including a feeler to coperate with the filling in the running shuttle and cause the operation of saidmechanism prior-to complete exhaustion of the filling in the shuttle, two filling-detectors to detect filling failure on alternate picks and adapted to govern the operation of a take-up instrumentality, stopping means for the loom, and operating connections between said means and the detectors, to effect the actuation of the stopping means upon detection of filling failure by either detector.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EBEN S. DRAPER. WVitnesses:

GEORGE O'ris DRAPER, ERNEST W. Woon. 

